<template>
    <div class="login_wrapper">
        <div class="login_box">
            <!--头像区域-->
            <div class="avatar_container">
                <img src="../assets/logo.png" alt="">
            </div>
            <!--表单区域-->
            <el-form ref='loginFormRef'  :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <el-form-item prop="username">
                    <el-input v-model='loginForm.username' prefix-icon="el-icon-user-solid"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model='loginForm.password' prefix-icon="el-icon-search"></el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" plain @click="login">登录</el-button>
                    <el-button type="info" plain @click="reset">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 表单的数据绑定对象
      loginForm: {
        username: '',
        password: ''
      },
      // 表单验证规则对象
      loginFormRules: {
        userName: [
          {
            required: true, message: '请输入账号', trigger: 'blur'
          },
          {
            min: 3, max: 6, message: '长度在 3 到 6 个字符', trigger: 'blur' }
        ],
        password: [
          {
            required: true, message: '请输入密码', trigger: 'blur'
          },
          {
            min: 6, max: 16, message: '长度在 6 到 16 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    reset () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('/login', this.loginForm)
        // console.log(res)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_wrapper {
    background-color: #2b4b6b;
    height: 100%;
    .login_box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
        .avatar_container {
            width: 130px;
            height: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            background-color: #fff;
            position: absolute;
            left: 50%;
            transform: translate(-50%,-50%);
            box-shadow: 0 0 10px #ddd;
            img {
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background-color: #ddd;
            }
        }
    }
}
.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.btns {
    display: flex;
    justify-content: flex-end;
}
</style>
